专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5755310A Ratchet lifting nut assembly 失效
标题翻译：棘轮提升螺母总成
公开(公告)号：US5755310A
公开(公告)日：1998-05-26
申请号：US715125
申请日：1996-09-17
申请人： Richard J. Wourms
发明人： Richard J. Wourms
IPC分类号： B66B5/00 , B66B9/02 , B66B11/04 , B66F3/08 , B66F7/14 , F16H25/24
CPC分类号： B66F7/14 , B66B9/025 , B66F3/08 , F16H25/2472
摘要： A screw-type lift having a ratchet lifting nut assembly providing for the safe lowering of a load while preventing additional lifting of the load upon failure of a lifting nut is disclosed. The ratchet lifting nut assembly includes a lifting nut and an auxiliary nut threadably engaging a lifting screw and a wear gap separating the lifting nut from the auxiliary nut. A ratchet portion is supported on the auxiliary nut and is aligned for engagement with a pawl supported on the lifting nut. During a normal mode of operation, the lifting nut supports the entire weight of a load and the ratchet portion and pawl cooperate to restrain rotational movement of the auxiliary nut relative to the lifting nut. A failure mode of operation is defined when the lifting nut is excessively worn in that it can no longer safely support the load. In this mode, the wear gap is eliminated wherein the auxiliary nut is supported on the lifting nut and the load is supported solely by the auxiliary nut. The ratchet portion and the pawl cooperate to restrain rotational movement of the auxiliary nut relative to the lifting nut in a first direction permitting the lowering of the load, while the auxiliary nut is permitted to rotate relative to the lifting nut in a second direction preventing the raising of the load. Therefore, when the lifting nut fails, the load may be safely lowered but the ratchet lifting nut assembly will prevent any further lifting of the load.
摘要翻译：公开了具有棘轮提升螺母组件的螺旋式升降机，其提供负载的安全降低，同时防止在提升螺母失效时额外提升负载。棘轮提升螺母组件包括提升螺母和与提升螺钉螺纹接合的辅助螺母和将提升螺母与辅助螺母分开的耐磨间隙。棘轮部分支撑在辅助螺母上并对准以与支撑在提升螺母上的棘爪接合。在正常的操作模式中，提升螺母支撑着负载的整个重量，并且棘轮部分和棘爪相配合地限制辅助螺母相对于提升螺母的旋转运动。当提升螺母过度磨损时，会定义故障运行模式，因为它不能再安全地支撑负载。在这种模式中，消除了磨损间隙，其中辅助螺母支撑在提升螺母上，负载仅由辅助螺母支承。棘轮部分和棘爪协作以在第一方向上抑制辅助螺母相对于提升螺母的旋转运动，允许降低负载，同时辅助螺母相对于提升螺母沿第二方向旋转，从而防止提高负载。因此，当提升螺母发生故障时，负载可以安全地降低，但是棘轮提升螺母组件将防止任何进一步的负载提升。

2. 发明授权

US5709286A Mechanical replacement for hydraulic in-ground vehicle lift 失效
标题翻译：机械更换液压地面车辆电梯
公开(公告)号：US5709286A
公开(公告)日：1998-01-20
申请号：US645113
申请日：1996-05-13
申请人： Roy W. Mead , Richard J. Wourms , Ronald W. Hamm
发明人： Roy W. Mead , Richard J. Wourms , Ronald W. Hamm
IPC分类号： B66F7/14 , B66F7/00
CPC分类号： B66F7/14
摘要： An in-ground mechanical vehicle lift apparatus including an outer cylinder and a support tube rigidly attached to the outer cylinder. A ram cylinder is located between the outer cylinder and support tube in telescoping relationship to the outer cylinder and the support tube. The drive motor is mounted to the ram cylinder and a drive screw is operably connected to the drive motor for engaging a nut rigidly attached to an upper end of the support tube. The drive screw is driven in rotation by the motor to cause the ram cylinder to move upwardly and downwardly relative to the outer cylinder, and a vehicle support portion is located on an upper end of the ram cylinder for engaging and supporting a vehicle. The lift apparatus is adapted to be installed as a replacement for an in-ground hydraulic lift system wherein the lift apparatus is of a compact design which will fit within an existing in-ground cylinder of the hydraulic system.
摘要翻译：一种地面机械车辆提升装置，其包括刚性地附接到外筒的外筒和支撑管。柱塞缸位于外筒和支撑管之间，与外筒和支撑管呈伸缩关系。驱动马达安装在柱塞缸上，驱动螺丝可操作地连接到驱动马达上，用于接合刚性连接到支撑管上端的螺母。驱动螺杆由电动机驱动旋转，使压头缸相对于外筒上下移动，车辆支撑部位于压头缸的上端，用于接合和支撑车辆。提升装置适于作为地面液压提升系统的替代而安装，其中提升装置具有紧凑的设计，该装置将装配在液压系统的现有地面气缸内。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式